Life sentence handed down at Cardiff Crown Court
A MAN has been sentenced to life imprisonment after admitting the murder of his estranged wife in Cardiff.
Appearing at Cardiff Crown Court today (Feb 20), Thisara Weragalage, aged 38, of Pentwyn, was given a life sentence with a minimum term of 23 years and nine months for the murder of Nirodha Niwunhella.
Weragalage had initially pleaded not guilty but later changed his plea, admitting the offence before the court on January 16, 2025.
The family of 32-year-old Niwunhellage Dona Nirodha Kalapni Niwunhella, known as Nirodha, paid tribute following her death, describing her as “a cherished daughter, family member and dear friend to many”.
They said: “We remember Nirodha as a cherished daughter, family member and dear friend to many. Nirodha will be forever remembered with peace, love and gratitude.
“She touched many lives with her kindness and warmth and her memory will continue to inspire us. Though her life ended too soon, the love she shared will always remain with us.
“Rest in peace angel.”
In a victim personal statement read to the court, her father said: “My only daughter was Nirodha Kalpani Niwunhella. She was a happy, mischievous, playful girl who captivated everyone’s hearts as a child. She loved her mother and father dearly and was a very good friend to her friends. She was a sweet girl who also loved animals.”
He added: “I am 64 years old and my wife is also 64 years old. The pain and anguish we felt when we were informed on August 21 that our daughter had been murdered cannot be described in words. After the brutal murder of our only daughter, all our hopes were ruined. Her loss is an unbearable mental burden for the family.
“We faced a lot of problems because this crime took place abroad. We were further affected by communication difficulties and economic hardships. We were further hurt and mentally distressed after it was confirmed that this crime was committed by our daughter’s husband. We still cannot understand how he could have committed this heinous crime, as we loved him also as much as we loved our daughter.”
Emergency services were called to South Morgan Place in the Riverside area of Cardiff at 7.37am on August 21, following reports of a seriously injured woman. Officers located a broken knife blade and handle nearby, and a post-mortem examination later revealed Nirodha had been stabbed at least twenty times.
Police officers who arrived first at the scene began immediate first aid, followed shortly afterwards by paramedics. Despite their efforts, she was pronounced dead at the scene.
Witnesses reported seeing a man — later identified as Weragalage — fleeing in a Ford Fiesta. Fast-track CCTV enquiries confirmed the vehicle was registered to him.
Less than an hour later, officers received a welfare-related call via the ambulance service concerning an incident on Seawall Road. Attending officers identified the man as matching the description circulated in connection with Nirodha’s death. A search of the nearby area located the Ford Fiesta, which contained blood inside, and Weragalage was arrested on suspicion of murder.
Senior investigating officer Detective Inspector Graham Williams said: “Nirodha was beloved by her family and friends, and her life was ended by her jealous and cowardly former partner.
“Nirodha was in the process of separating from Weragalage, who could not accept that she no longer wanted to be in a relationship with him. He brought knives to the area which he said were to intimidate her and then went on to murder her.
“I’m pleased he owned up to his cowardly actions and spared Nirodha’s loved ones from enduring a trial. While no sentence can compensate for this loss of life, I hope the end of criminal proceedings helps bring them some peace.
“This sentencing is the result of countless hours of work from teams across the force, and I’d like to thank everyone involved for their time and efforts to secure this outcome. I’d also like to thank those from the community who supported our investigation throughout.
“We will not stand for violence in any form, including violence against women and girls, and we will do everything in our power to hold those responsible to account.”
